Process of uniting metals



(No Model.)

v V 2 Sheets-Sheet 1. P. A. GODFREY.

PROCESS OF UNITING METALS.

No. 359,319. Y Patented Mar. 15, 1887.

INVENTOR IT .fl'Godfrey,

By his flttorneys (No Model.) 1 2 Sheets-Sheet 2. P. A. GODFREY.

PROCESS OF UNITING METALS. No. 359,319. Patented Mar. 15,1887..

INV'ENTOR yfiis flttorneys Fred 7 1 3.

To all whom, it may concern..-

FFICEQ PATENT FRED A. GODFREY, OF HOLYOKE, ASSIGN OR TO GEORGE F.POTTLE, OF WEST MEDFORD, MASSACHUSETTS.

PROCESS OF UNITING METALS.

SPECIFICATION forming part oi Letters Patent No. 3 59,319,dated March15, 1887.

Application filed April 9, 1884.

Be it known that I, FRED A. GODFREY, a citizen of the United States,residing at Holyoke, in the county of Hampden and Commonwealth ofMassachusetts, have invented certain new and useful Improvements in theFounding of Metals, of which the following is a specification, referencebeing bad to the ac companying drawings, forming a part thereof.

My invention especially relates to the process of incorporating withcastings of a given metal such as ironother castings already formed of amore fusible metalsuch as brass or composition.

The object of my improvement is to provide a practical method of formingthe first casting without the fusion of the second, and thus to join thetwo without the expense of fitting and mechanical connection. I attainthis object in the manner hereinafter described, and, as far as the caseadmits, illustrated in the accompanying drawings, in which- Figure Irepresents in section, and Fig. 2 in plan, a casting formed according tomy present method, which will be further hereinafter explained.

These drawings are intended to illustrate the application of my methodto the casting of a cylinder, 0, of, say, cast-iron, with an interiorlining or facing, A, of, say, brass. The

lining A is first cast. Then when it is desired to form the cylinder 0in union with it I first form a protecting shell or ring, B, of somemetal of higher fusibility than the lining A, and at the same time notexceeding in fusibility the metal of which the cylinder G is to beformed. As cast-iron answers these require- Serial No. 127,158. (Nomodel.)

ments, we may consider B to represent an exterior protecting-ring ofcast-iron. This having been put in place around the ring A and the wholebeing put in a suitable mold, molten east-iron is then poured in to formthe cylinder 0. As this metal comes in contact with the ring 13 it fusesand unites with it, while at the same time the ring B gradually fusesand unites with the lining A. It will thus be seen that if the ring B isproperly proportioned the whole mass will be properly united withoutinjury to-the brass lining.

Figs. 3, 4c, 5, and Gillustrate another application of the foregoingmethod, whereby a ring of brass or bronze, D, is cast in union with oneof cast-iron, F, by means of the interposed ring of cast-iron E. Themethod of doing this being that already described, no furtherexplanation is deemed necessary.

I do ,not confine myself herein to any particular application of thisinvention, nor to the use of any particular metal or metals.

I claim The herein-described method of forming a compound metallic mass,which consists in placing a metal of comparatively low fusibility in amold; second, in placing over the same a protecting-piece of metal ofhigher fusibility; third, pouring against the latter piece molten metal,as above described, thereby fusing the intermediate protecting-piece anduniting the metals, as and for the purposes set forth.

FRED A. GODFREY.

Witnesses:

H. H. TRENORGY, H. K. HAWES.

